Fundamentally, 513990.SHG reflects the performance of its underlying index. Changes in the prices of the constituent stocks directly influence the ETF's NAV and market price.

Market supply and demand plays a crucial role. High demand tends to push the price up, while increased selling pressure can lead to price declines.

Investor sentiment toward Chinese technology companies significantly impacts the ETF. Positive news and bullish outlooks can increase demand.

Currency fluctuations between RMB and other currencies can affect the ETF's price, especially for international investors. A weaker RMB may decrease the ETF's value in other currencies.

Changes in regulatory policies impacting the Chinese technology sector have a direct bearing. New rules, taxes, or restrictions can affect investor confidence and stock prices.

The expense ratio and management fees charged by the ETF issuer impact the net return for investors. Higher fees can lead to a lower overall return.

Overall economic conditions in China, including GDP growth, inflation, and interest rates, influence the performance of the underlying companies and, consequently, the ETF.